I think I know what you're referring to. Could you let me know what your complete model code is, so I don't err when I write?
OK...this is really frustrating me. I have my desktop PC and my Laptop connected to my home network. So, both show up on my Samsung TV as "Sources". I've played media off both PC's before.
When I go to my Laptop on the "Source" list, it is still showing a list of videos that have since been removed from my PC...almost like a "recently played" or "history". But I can't get them to go away. It's really bugging me.